See also OpenVZ a3f732ef75/src/enter.c (L227-L234)
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit a316b10dab79d9298b02c7930958ed52e0ccf4e4)
Upstream-commit: 706204124878a97142be511c0c46bcc16b43b0bd
Component: engine